Whites Shim - 7.48mm x 1.45mm (5 Pack) crossfire All Balls seal heads are

All Balls seal heads are made from 6061-T6 aluminium to save weight

40mm DISTANCE BETWEEN ENGINE MOUNTING HOLES (CENTRE HOLE TO CENTRE HOLE) approx 45

52mm TOTAL LENGTH OF START MOTOR approx 163mm DIAMETER OF THE GEAR SHAFT (OUTSIDE OF SPLINE) approx 11

Increased Power: Thumpstar has boosted the bike's power

Whites Shim - 7.48mm x 1.45mm (5 Pack) crossfire All Balls seal heads areConstructed using a specific heat treatment to ensure hardness for maximum durability and less wear and precision machined to match exact sizing requirements. Each size is sold individually as a pack of 5 to reduce costs when only requiring a particular size or restocking your valve shim pack. Most 250cc 4 strokes use 7. 48 mm OD shims most 400cc and up 4 strokes use 9. 48 mm OD shims and KTM models use 10 or 8. 90 mm OD shims. Heat treated ensuring